Spoiler for an automobile



FIG. 1 is a top, plan view of the spoiler for an automobile, showing my new design;

FIG. 2 is a perspective view thereof;

FIG. 3 is a right-side view thereof;

FIG. 4 is a left-side view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a perspective, front view thereof; and,

FIG. 7 is a bottom view thereof.

In the drawings, the broken lines show portions of a spoiler for an automobile and form no part of the claimed design. 

The ornamental design for a spoiler for an automobile, as shown and described. 